Yes. The load capacity of 12-2 is higher.
14
2+12-7*4/2 = 2+12-28/2 = 2+12-14 = 14-14 = 0
The numbers are -2 and -12 because -2 times -12 = 24 and -2+(-12) = -14
12
The sum of 14 and -12 is 2.
The only way to change a 14-2 wire into a 14-3 wire is to physically remove the 14-2 and replace it with a 14-3.
Both 12-2 and 14-2 wire have 2 wires in a single cord. Neither contains a ground wire. Size 12 wire is a larger wire than size 14 wire. Size 12 wire can carry more amperage without getting hot and burning up. They would not be used for house wiring or machinery since they do not have a ground wire.
You cannot connect 12-2 wire and 14-2 wire together. This can be dangerous, and it will cause issues with the circuit.
Yes the ampacity of #12 is 20 amps whereas the ampacity of #14 is 15 amps, so you are well within the range using #12 wire.
The recommended gauge for 12-2 low voltage wire in outdoor lighting installations is typically 12 or 14 gauge wire.
The recommended gauge for 12/2 low voltage wire in outdoor lighting installations is typically 12 or 14 gauge wire.
No, it is not recommended to use 12/2 wire for outlets in your electrical installation. It is typically used for lighting circuits and not outlets, which usually require 14/2 or 12/3 wire for proper installation.
The '12' and '14' refers to the gauge of the wire. A 14 gauge wire is used for circuits drawing 15 amps or less; general lighting and outlets. A 12 gauge wire is used for 20 amp circuits, like dishwashers, disposals, and microwaves. The '-2' refers to the number of conductors in the wire. 14-2 is a 14 gauge wire with 2 conductors in the sheath. A 14-3 with ground would have three conductors plus a ground in the sheath, for a total of four wires, and is most often used for ceiling fan wiring and three way switches.
Yes, you can replace a short length of 14-2 wire with 14-3 wire and not use the red conductor. Just cap off the red wire with a wire nut at both ends to ensure it is not accidentally connected to anything. Keep in mind that the unused red wire must still be properly terminated in electrical junction boxes.
No, 14-2 wire is typically used for lighting circuits in residential electrical installations. For outlets, it is recommended to use 12-2 wire to handle the higher electrical load.
No, it is not recommended to use 12/2 wire for lights in your electrical installation. It is typically used for general household outlets and appliances, while 14/2 wire is more suitable for lighting circuits.
The wire sheathing itself is usually marked. e.g. 14 CU 2 or 14/2 CU will indicate 14 gauge 2-wire (+ ground) copper (CU being the symbol for copper on the periodic table). For 15amp circuits you will likely has 14 gauge wire with most of that being 14/2 (Usually white, black, and bare copper).